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Finding the Fourth Proportional to 646,042.88, 969,225.60 and 225,324.80

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Solution

The fourth proportional to 646,042.88, 969,225.60 and 225,324.80 is: 338,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,042.88 : 969,225.60 = 225,324.80 : x
  2. Step 2: Convert to fraction form
    646,042.88/969,225.60 = 225,324.80/x
  3. Step 3: Cross multiply
    646,042.88x = 969,225.60 × 225,324.80
  4. Step 4: Simplify right side
    646,042.88x = 218,390,564,474.88
  5. Step 5: Solve for x
    x = 218,390,564,474.88/646,042.88
  6. Step 6: Final answer
    x = 338,043.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.